Plastic cutter blade



FIG. 1 is a perspective view of aplastic cutter blade showing my new design, the broken line showing of a utility knife is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a detail view of the front of the blade as taken along line 4--4 of FIG. 3;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a right end elevational thereof;

FIG. 7 is a left end elevational view thereof; and,

FIG. 8 is an enlarged scale bottom view projected from FIG. 3. 

The ornamental design for plastic cutter blade, as shown and described. 